Francois, I have previously tested to the European standard for wheelchairs, EN12184, the emissions section in this was the same as en55022, unfortunately I can not remember which class, but the emissions coming of the chairs was not that high and normally below the limits. It was normally the wheel motors that caused the emissions.
>From this the effect would be no different than being close to other equipment >that is giving off emissions, On the Immunity side of the testing, on various chairs you could get the brakes to be released or the speed to alter and even stop. Not all the manufacturers saw this as a problem! regards Darren Pearson > > >-----Original Message----- > >From: Francois Venter [mailto:[email protected]] > >Sent: Tuesday, May 29, 2001 11:28 PM > >To: [email protected] > >Subject: EMI from Electrical wheelchairs > > > > > > > >Hi All > > > >Can anybody please tell me where I can find information on EMI from and > >interfering with Electric wheelchairs. I recently had a question from > >somebody after a patient with multiple sclerosis seemed to be affected > >by something when placed in an electric wheelchair. In a normal > >wheelchair his movements etc seemed normal for a person with his > >condition. In the electric wheelchair his condition seemed to be much > >worse. > > > >Anybody heard about similar cases? > > > >Francois Venter > >Alcatel Altech Telecoms > >PO Box 462, Boksburg, 1460, South Africa > >Tel +27 (0)11 899-6064 > >Fax +27 (0)11 899-6590 > >[email protected] > > ------------------------------------------- > This message is from the IEEE EMC Society Product Safety > Technical Committee emc-pstc discussion list. > > Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ > > To cancel your subscription, send mail to: > [email protected] > with the single line: > unsubscribe emc-pstc > > For help, send mail to the list administrators: > Michael Garretson: [email protected] > Dave Heald [email protected] > > For policy questions, send mail to: > Richard Nute: [email protected] > Jim Bacher: [email protected] > > All emc-pstc postings are archived and searchable on the web at: > http://www.rcic.com/ click on "Virtual Conference Hall," > > ------------------------------------------- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: [email protected] with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Michael Garretson: [email protected] Dave Heald [email protected] For policy questions, send mail to: Richard Nute: [email protected] Jim Bacher: [email protected] All emc-pstc postings are archived and searchable on the web at: http://www.rcic.com/ click on "Virtual Conference Hall,"
